All the ways extinction is possible helps to answer Fermi’s paradox. Asteroids, nuclear war, disease, supernova, etc. I was just reading that NASA is getting closer to its [asteroid defense system](https://www.nasa.gov/planetarydefense/dart). It’s like civilizations are in a race to get technologically advanced enough to protect against all the ways they can be extinguished. I imagine we would one day catalog all of the potential supernovas near us to a high degree of certainty. Hopefully, if we found an imminent one, we would be advanced enough to take mitigating steps or just leave the planet.